L50 Incremental Linear Encoder
L50 Linear Encoder Drawing

Incremental linear encoder

L50

Optical modular linear encoder L50 is an incremental encoder and has a measuring length from 3.240 up to 30.040 mm, grating period of 40 µm, and accuracy of any meter within the ML of up to ±10 µm.

Mechanical data

Measuring lengths (ML), mm from 3240 up to 30040 (length of each module with steps 200 mm)
Accuracy grades to any meter within the ML (at 20°C) ±10 μm/m
Grating period 40 μm
Reference marks (RI) C: at coded distance 80 mm
P: at constant step 50 mm
E: selectable through magnet
Max. traversing speed 1 m/min
Required moving force with sealing lips < 6 N
Protection (IEC 529) with compressed air:  IP64
Weight 1.8 kg + 3.3 kg/m
Operating temperature 0…+50°C
Storage temperature -20…+70°C
Permissible vibration (40 to 2000 Hz) ≤ 100 m/s²
Permissible shock (11 ms) ≤ 300 m/s²
Coefficient of thermal expansion 10.6 x10-6°C

Electrical data

Version L50AV ∫ 1 Vpp L50-F Π TTL
Supply voltage + 5 V ± 5 %  + 5 V ± 5 %
Max. supply current (without load) 100mA 150 mA
Light source LED LED
Resolution up to 0.1 µm depending on external subdividing electronics 10; 5; 1; 0.5 μm (after 4 – fold dividing in subsequent electronics)
Incremental signals Differential sine +A / -A and +B / -B
Amplitude at 120 kΩ load:
– A = 0.6 – 1.2 V
– B = 0.6 – 1.2 V		 Differential square-wave U1 / U1 and U2 / U2. Signal levels at 20 mA load current:
– low (logic “0”) < 0.5 V at Up = ±5V
– high (logic “1”) > 2.4 V at Up = ±5V
Reference signal One quasi-triangular +R and its complementary -R per revolution. Signals magnitude at 120 W load:
– R = 0.2 – 0.8 V (usable component		 One differential square-wave U0 / U0 per revolution. Signal levels at 20 mA load current:
– low (logic “0”) < 0.5 V at Up = ±5V
– high (logic “1”) > 2.4 V at Up = ±5V
Direction of signals + B lags + A in clockwise rotation (viewed from shaft side) U2 lags with U1 in clockwise rotation (viewed from shaft side)
Standard cable length 4 m 4 m
Maximum cable length 150 m 50 m

Accessories

Downloads

Product Catalog
Encoder Selection Guide 2025
L50 Linear Encoder Datasheet
L50 Incremental Linear Encoder 2D Drawing

Order code

L50 – X1 – X2 – X3 – X4/X5

Output Signals and Resolution (X1) Measuring Length (X2) Reference Mark (X3) Cable Length (X4) Connector Type (X5)
AV – Sinusoidal
F10 – TTL 1.0um
F20 – TTL 2.0 um
F50 – TTL 5.0 um
F100 – TTL 10um		 3240 – 3240mm
0520 – 5240mm
…
30400 – 30400mm		 C – at coded distance (80mm)
P – at constant step (50mm)
E – selectable through magnet		 01 – 1m
02 – 2m
03 – 3m		 W – without connector
B12 – round, 12 pins
C9 – round, 9 pins
C12 – round, 12 pins
D9 – flat, 9 pins
D15 – flat, 15 pins
RS10 – round, 10 pins
ONC – round, 10 pins

ORDER EXAMPLE: 

  1. L50-AV-30400-C-04/C12

Order form

    Check the "Order code" tab in the product page to see how to know your order code.